Pneumatic brush.



No. 876,371. PATENTED JAN. 14, 1908. P. J. MATCHETTE & C. MOUKOS.

PNEUMATIC BRUSH.

APPLICATION FILED FEB. 16, 1906.

UNITED dT-ATES PATEN T OFFICE.

FRANK .l. MATCHETTE AND CHARLES MOU'KOS, Ol i\IlLl\AUKEE, WISCONSIN; SAID MOUKOS ASSIGNOB T0 SA [1) MATCHETTE.

PNEUMATIC BRUSH.

Specification of Letters Patent.

Patented Jan. 14, 1908.

Application filed February 16.1906- Serial No. 301.329.

of Greece, respectively, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Pneumatic Brushes, of which the following .is a specification, ref erence being had to the accompanying drawing, forming a part thereof.

The main object of this invention is to remove dust from walls, ceilings or other finished surfaces, without marking, scratching or marring them.

It consists in certain novel features of con struction and in the peculiar arrangement and combinations of parts as hereinafter par ticularly described and pointed out in the claims.

In the accompanying drawing likgcharacters designate the same parts in the several figures.

Figure 1 is a vertical cross section on the line 1 1, Fig. 3, of a brush embodying the present invention; Fig. 2 is a side elevation of the brush as seen from the left with reference to Figs. 1 and 3 and as provided with an extensible handle, certain parts being broken awa and Fig. 3 is a horizontal section on the inc 3 3, Figs. 1 and 2.

For the purposeof illustration a round brush specially designed for cleaning walls and ceilings is shown in the drawing, but the essential features of the invention may be embodied in brushes of other forms, oval, oblong, etc, for different kinds of work or for cleaning surfaces of different kinds,

. Referring to the drawing, a is the back of the brush, which may be conveniently made as shown in Fig. 1, of wood or similar material in two sections, one fitted within-the other. The inner section is provided with bristles b and the outer section with one or more rows of bristles 1). Between the inner and outer sections a bell-shaped or flaring deflector c .of rubber, oilcloth or other suitable flexible material is secured. It sur rounds the interior bristles b and is surrounded and covered by the exterior bristles 6, extending from the backtowards and terminating short of the free ends of the bristles. The inner back section is formed with a circular I series of downwardly and outwardly inclined openings d.

c is a chambered o'r recessed metal plate attached to the back. over the o enings d. This plate is provided with two hollbw socket postsf, one of which is made detachable from the plate for the purpose of inserting the handle.

g is a tubular handle detachably secured at one end in a toe 71/, which is fitted to turn in the opposing inner recessed sides of the posts fland 1S clamped .and held therein at any desired angle to the brush back by a screw i passing transversely through said posts and the intervening tee and provided at one end with a wing nut j. The tee h is formed with a split sleeve which is rovided with a clamping screw it to fasten t 1e handle 9 therein and to facilitate changing one handle for another of different length. The recessed plate 6, hollow posts fand tubular handle g form an air and dust conduit which conmiunicates through the openings d in the brush back with the interior of thedefiector c.

The handle may be made as shown in Fi 2, of tubular sections g, sothat it can be readily extended by connecting additional sections each with a coupling sleeve Z. This coupling sleeve may be permanently attached at one end to one section of the'handle and like the tee it which connects the handle with the brush, may be split at the other end and provided with a screw m for clamping it upon the adjoining end of another section;

In the operation of the brush the tubular handle 9 is connected by a hose with a suction main or air exhausting device, the hose connection or handle being provided with a valve (not shown) and this Valve bein i plate 0, the hollow post-sf, tubular handle g,

and the hose and pipe connections and dis charged therefrom at any convenient point.

The brush being moved over the surface to be cleaned, the air drawn into and through the bristles is com )elled to pass around the free edge of the deflector 0 close to such surface, and to the free ends of the adjacent bristles and the draft is thus concentrated where it will be most effective in aiding the bristles to detach dust and dirt adhering to and arrangement'of parts may be made withv ingrsuch surfaces.

said surface and in taking up' and carrying away the dust and dirt so detached.

By looseningthe nut j the brush. ma be easily turned and set at. any desired ang e to thez handle such asjitmay be most effective and convenient for the particular work to be done. When it is so set it lis secured in its adjusted position by tightening said nut. For Working on ceilings or walls of different heights the handle is adjusted in length by adding or removing sections, which canbe "eadily accomplished by means of the split coupling sleeves Z.

In working on polished'o r finished walls,

ceilings or other surfaces with thebrush, the outer bristles b surrounding the deflector c, prevent that deflector from. coming in contact with and marking, scratching or defacarious changes in detailsxof construction out departing from the principle and intended scope of the invention;

Iclaim:

.1. In a'pneumatic brush the combination with the back and bristles, of a flexible detl'ector surrounding and surrounded by bris tles,":and an air and dust conduitcommun'ieating through'the back with the interior of the deflector, substantially as described.

2. In a pneumatic brush the combination with the back and bristles, of a deflector surrounding the interior bristles and surrounded by the exterior bristles, and an airand dust conduit communicating with the space inside of the deflector, substantially as described.

, f3. In a pneumatic brush the combination-- I with the back and bristles, of .a flexible deflector extending from the back towards the free ends of the bristles surrounding and .surroundedbybristles, and an air and dust I conduit co'mmunicatingwith the space inside of the deflector, substantially as described.

with the back and bristles, of a deflector extending from the back towards the free ends of the bristles surrounding and surrounded by bristles, and an extensible tubular'handle attachedto the back and communicating with the space inside of the de flector, substantially as described.

5. In a pneumatic brush the combination with the back and bristles, of a deflector ex tending from the back towards the free ends of the bristles and surrounded by bristles, and a tubular handle having an adjustable with the jointed connection with the back through which it communicates with the space inside of the deflector, substantially as described.

6. In a pneumaticbrush the combination with the .-back and bristles, of socket posts attached to the back, a tubular handle having a tee at one end fitted'to turn in said socket posts, and a clamping screw passing through the tee and connecting said osts, one of which'is hollow and communicates with an opening through the. back, substantially as described.

having openings throu h it, of a chambered plate attached to the ack over said open- 1ngs and provided with hollow socket posts, a tubular handle terminating in a tee which is fitted to turn in said posts and communicates through themwiththe chamber in said neumatic brush the combination. ack provided with bristles and plate, and a clamping screw for fastening said-handle at different angles to the back,

. substantially as' described.

8. In a pneumatic brush, the combination with the back and bristles, of a deflector surrounding and surrounded by bristles, a tubular extensible handle communicating with the space inside the deflector and adjustably attached to the back, and means for locking the said handle at various angles relative to the back, substantially as described.

9. In a pneumatic brush, the combination with the back and bristles, of a flexible deflector surrounding and surrounded by bristles, a tubularhandle having an adjustable connection with the back in communication with the space inside of the'deflector,

and adjustable means fon locking the handle at various angles to as descrlbed;

10. In a pneumatlc brush, the combination with the back, provided. with bristles and the back, substantially plate havlng ho low socket .posts and mountedupon the back over said openings, a de-. 4. In a pneumatic brush the combination fleetor surrounding and surrounded by bristles, a tubular handle adjustably connected with said posts and means for locking said handle in adjusted relation to the back, substantially as, described. In testimony whereof we hereto affix our signatures in presence-of two witnesses.

FRANK J. MATCHETTE. CHARLES MOUKOS.

Witnesses. V

H. 0. KAUFMAN, 4 H. G. STEPHENS.-

havin 0 enin s therein of a chambered c P i 

